Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Anglo-French
Origin: tretiz, from Old French traitier; TREAT1

treatise

 noun
     
Related topics: Newspapers, Publishing
trea‧tise [countable ]
TCN a serious book or article about a particular subject
treatise on
a treatise on medical ethics
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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